chriso/node-validator — pull request #157 by jksdua (2013-02-28 06:44:21+00:00)
Title: Replaced isIP with built-in methods

Tested against the test suite in 0.8.20.

From the node API docs, the method seems to exist since at least 0.3.1 - http://nodejs.org/docs/v0.3.1/api/net.html